蜂桶山自然保护区常绿阔叶林群落结构研究  

Study on Community Structure of Evergreen Broad-leaved Forest in the Fengtongshan Nature Reserve

作　　者：黄钟宣 陈文德 谢文春 姚文文 朱坤 张会敏 嬴乔楚 Huang Zhongxuan;Chen Wende;Xie Wenchun;Yao Wenwen;Zhu Kun;Zhang Huimin;Ying Qiaochu(Tourism and Urban-Rural Planning College of Chengdu University of Technology,Chengdu 610059,China;National Park Research Center of Sichuan Key Research Base of Social Sciences(Extended),Chengdu 610059,China)

机构地区：[1]成都理工大学旅游与城乡规划学院,四川成都610059 [2]四川省社会科学重点研究基地(扩展)国家公园研究中心,四川成都610059

出　　处：《中国野生植物资源》2021年第2期83-90,100,共9页Chinese Wild Plant Resources

基　　金：四川省社科基地重大项目(SC20EZD003);四川省生态环境科学研究院课题。

摘　　要：亚热带常绿阔叶林是东部季风区典型的植被类型,具有丰富的科研价值和生态价值。为了研究其群落演替驱动机制和稳定机制,按照美国史密森研究院热带森林研究中心(Center for tropical forest science,CTFS)和《中华人民共和国国家环境保护标准(HJ 710.1-2014)》的技术要求,在四川蜂桶山省级自然保护区建立了1 hm 2大型观测样地,调查并鉴定了样地内胸径(Diameter at breast height,DBH)≥1 cm的乔灌木物种,分析了其物种组成、群落结构、优势物种的径级结构和空间分布。调查结果发现:样地内有乔灌木77个物种共1777个活个体,分属于26科48属,以壳斗科(Pinaceae)和桦木科(Betulaceae)为主,共有944个活个体,占总株数的53.12%;样地内重要值(Important value,IV)≥1的有28个物种,以青冈(Cyclobalanopsis glauca)、柯(Lithocarpus glaber)、黄连木(Pistacia chinensis)和千金榆(Carpinus cordata)为主,该4个物种占样地总胸高断面积的27.05%;群落的径级结构呈倒“J”型,群落更新良好;黄连木呈正态分布,群落较稳定。样地内物种呈现一定的空间聚集性,主要分布在中上坡;优势物种主要为随机分布,但三桠乌药(Lindera obtusiloba)偏均匀分布。通过样地物种的组成分析,为群落结构组成、动态演变机制、生态系统功能等研究奠定了前期基础。Subtropical evergreen broad-leaved forest is a typical vegetation type in the eastern monsoon region,which with abundant scientific research values and ecological values.In order to research the driving mechanisms and stabilizing mechanisms of community succession of the forest,1 hm 2 large permanent plot was established in Fengtongshan Provincial Nature Reserve in Sichuan Province within the technical requirements of the American Smithsonian Institute Center for Tropical Forest Science(CTFS)and the Environmental Protection Standards of the People’s Republic of China(HJ 710.1-2014).We investigated and identified all trees and shrubs with diameter at breast height(DBH)≥1 cm in the permanent plot,and analyzed the species composition,community structure,and the structure of DBH class and spatial distribution of dominant species.The investigation showed that there were 77 species of trees and shrubs in the permanent plot,including 1777 living individuals in total,which belonged to 26 families and 48 genera respectively.Among them,Pinaceae and Betulaceae were the main families,including 944 living individuals,which accounted for 53.12%of the total number.Besides,there were 28 species with important value(IV)≥1 in the permanent plot,among which were mainly Cyclobalanopsis glauca,Lithocarpus glaber,Pistacia chinensis and Carpinus cordata,accounting for 27.05%of the basal area in the permanent plot.The investigation also showed that the community structure of DBH class which appeared an inversed“J”form,indicated that the regeneration of the community was in good condition,while Pistacia chinensis was in normal distribution,and its community was relatively stable.The species presented a certain spatial aggregation,mainly distributed in the middle and upper slopes of the permanent plot.The dominant species were mainly in random distribution,except that Lindera obtusiloba’s in more even distribution.The analysis of the species composition in the permanent plots laid on a foundation for the study of the community

关 键 词：常绿阔叶林 优势物种 群落结构 蜂桶山 

分 类 号：Q948.1[生物学—植物学]